Yosemite Decimal System
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Yosemite Decimal System
The Yosemite Decimal System (YDS) is a three-part system used for rating the difficulty of walks, hikes, and climbs, primarily used by mountaineers in the United States and Canada. It was first devised by members of the Sierra Club in Southern California in the 1950s as a refinement of earlier systems, particularly those developed in Yosemite Valley, and quickly spread throughout North America. Description The class 5 portion of the class scale is primarily a rock climbing classification system, while classes 1–2 are used mainly in hiking and trail running. Class 3 describes easy and moderate climbing (i.e. scrambling), with varying amounts of exposure (length of a possible fall). Class 4 is an "in-between" rating that describes a very exposed scramble, corresponding roughly to the IFAS classification of PD+. Climbers, specifically those involved with technical class 5 climbing, often abbreviate "class 3" and "class 4" to "3rd" and "4th" respectively. Originally the system was ...
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Mountaineering
Mountaineering or alpinism, is a set of outdoor activities that involves ascending tall mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas. Indoor climbing, sport climbing, and bouldering are also considered variants of mountaineering by some. Unlike most sports, mountaineering lacks widely applied formal rules, regulations, and governance; mountaineers adhere to a large variety of techniques and philosophies when climbing mountains. Numerous local alpine clubs support mountaineers by hosting resources and social activities. A federation of alpine clubs, the International Climbing and Mountaineering Federation (UIAA), is the International Olympic Committee-recognized world organization for mountaineering and climbing. The consequences of mountaineering on the natural environment can be seen in terms of individual components of the environment (land relief, soil, vegetation, fauna, and landscape) and location/z ...
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Aid Climbing
Aid climbing is a style of climbing in which standing on or pulling oneself up via devices attached to fixed or placed protection is used to make upward progress. The term contrasts with free climbing in which progress is made without using artificial aids: a free climber ascends by only holding onto and stepping on natural features of the rock, using rope and equipment merely to catch them in case of fall and provide belay. In general, aid techniques are reserved for pitches where free climbing is difficult to impossible, and extremely steep and long routes demanding great endurance and both physical and mental stamina. While aid climbing places less emphasis on athletic fitness and raw strength than free climbing, the physical demands of hard aid climbing should not be underestimated. In early versions of the Yosemite Decimal System, aid climbing was class 6, but today the YDS uses only classes 1-5. Aid climbing has its own ranking system, using a separate scale from A0 thro ...
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Climbing
Climbing is the activity of using one's hands, feet, or any other part of the body to ascend a steep topographical object that can range from the world's tallest mountains (e.g. the eight thousanders), to small boulders. Climbing is done for locomotion, sporting recreation, and for competition, and is also done in trades that rely on ascension; such as emergency rescue and military operations. Climbing is done indoors and outdoors and on natural (e.g. rock and ice) and artificial surfaces. Professional mountain guides or rock climbing guides (e.g. the UIAGM), were a significant element in developing the popularity of the sport in the natural environment, and remain so today. Since the 1980s, the development of competition climbing and the availability of artificial climbing walls have dramatically increased the popularity of rock climbing as a sport and led to the emergence of professional rock climbers, such as Wolfgang Güllich, Chris Sharma, Lynn Hill and Catherine ...
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Aid Climbing
Aid climbing is a style of climbing in which standing on or pulling oneself up via devices attached to fixed or placed protection is used to make upward progress. The term contrasts with free climbing in which progress is made without using artificial aids: a free climber ascends by only holding onto and stepping on natural features of the rock, using rope and equipment merely to catch them in case of fall and provide belay. In general, aid techniques are reserved for pitches where free climbing is difficult to impossible, and extremely steep and long routes demanding great endurance and both physical and mental stamina. While aid climbing places less emphasis on athletic fitness and raw strength than free climbing, the physical demands of hard aid climbing should not be underestimated. In early versions of the Yosemite Decimal System, aid climbing was class 6, but today the YDS uses only classes 1-5. Aid climbing has its own ranking system, using a separate scale from A0 thro ...
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Adam Ondra
Adam Ondra (born February 5, 1993) is a Czech professional rock climber, specializing in lead climbing and bouldering. In 2013, ''Rock & Ice'' described Ondra as a prodigy and the leading climber of his generation. Ondra is the only male athlete to have won World Championship titles in both disciplines in the same year (2014) and is also the only male athlete to have won the World Cup series in both disciplines (lead climbing in 2009, 2015, and 2019 and bouldering in 2010). At age 13, Ondra had climbed his first route graded . ''Rock & Ice'' reported that by 2011, Ondra was "onsighting 5.14c's by the handful" and, by 2013, had "more or less repeated every hard route in the world—easily". As of November 2018, Ondra had climbed 1,550 routes between grades and , of which one was a , three were , and three were onsights of . Ondra is the first climber to redpoint a route with a proposed grade of (''Silence'', 2017), the first-ever climber to redpoint a route (''Change'', 2012), ...
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Silence (climb)
''Silence'' (also ''Project Hard''), is a severely overhanging sport climbing route in the granite Hanshelleren Cave, in Flatanger, Norway. When Czech climber Adam Ondra made the first free ascent on 3 September 2017, it became the first rock climb in the world to have a proposed climbing grade of , and it is an important route in rock climbing history. To complete the route, Ondra undertook specialist physical and mental training to overcome its severely overhanging terrain. As of February 2023, ''Silence'' remains unrepeated. History Ondra bolted the route in 2012–2013while he climbed ' at Flatanger, the world's first 9b+but dropped the project for a period saying: "I could sort of imagine doing the individual moves, but I could see that linking the whole sequence, with its 8C boulder, all the way from the ground just looked way too ridiculous". After retrying it in 2015 and working through some of the technical challenges, Ondra began to commit more time to the project ca ...
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Open Book (Tahquitz)
Open Book is a technical rock climbing route at Tahquitz Rock, in Riverside County, California. Since the Yosemite Decimal System was developed at Tahquitz it is no coincidence that the first climb to be rated 5.9, Open Book, is also located at Tahquitz. In 1952, when Royal Robbins Royal Robbins (February 3, 1935 – March 14, 2017) was one of the pioneers of American rock climbing. After learning to climb at Tahquitz Rock, he went on to make first ascents of many big wall routes in Yosemite. As an early proponent of bolt ... climbed it free, it was one of the most difficult free ascents in the country. References {{reflist External links supertopomountainproject.com
Climbing routes ...
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The Mountaineers (Pacific NW)
The Mountaineers is an alpine club in the US state of Washington. Founded in 1906, it is organized as an outdoor recreation, education, and conservation 501(c)(3) nonprofit organisation, and is based in Seattle, Washington. The club hosts a wide range of outdoor activities, primarily alpine mountain climbing and hikes. The club also hosts classes, training courses, and social events. The club runs a publishing business, Mountaineers Books, which has several imprints. Publications include '' Mountaineering: The Freedom of the Hills''. Organization and activities The Mountaineers has 7 branches in Western Washington, 3 mountain lodges, and 2 program centers, one in Magnuson Park in Seattle, and one in Tacoma. All classes and trips are organized. History Originally a Seattle-based part of the Mazamas, a Portland based group founded in 1894, The Mountaineers formed their own branch shortly after the 1906 Mazamas Mount Baker expedition and dubbed themselves "The Mountaineers" ...
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Tahquitz Peak
Tahquitz Peak (pronounced , sometimes ) is a granite, rock formation located on the high western slope of the San Jacinto mountain range in Riverside County, Southern California, United States, above the mountain town of Idyllwild. Tahquitz has a steep approach hike (approximately 800-foot elevation gain in a half mile), leading to a roughly 1000-foot face. Tahquitz, which can refer to both the rock outcrop and the outcrop's parent peak, is a popular hiking destination to the fire lookout station and the rock climbing area. The Yosemite Decimal System, widely used in North America to classify hiking and climbing routes, was developed into its modern form at Tahquitz Peak. Description Tahquitz Peak can be reached from one of several trails, and is only a half-mile deviation from the Pacific Crest Trail. The most direct route is the South Ridge trail starting in Idyllwild, California. This trail is a direct hike to the peak and is typically used as an "out and back" route, four ...
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Sierra Nevada (U
The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada. The Sierra Nevada is part of the American Cordillera, an almost continuous chain of mountain ranges that forms the western "backbone" of the Americas. The Sierra runs north-south and its width ranges from to across east–west. Notable features include General Sherman, the largest tree in the world by volume; Lake Tahoe, the largest alpine lake in North America; Mount Whitney at , the highest point in the contiguous United States; and Yosemite Valley sculpted by glaciers from one-hundred-million-year-old granite, containing high waterfalls. The Sierra is home to three national parks, twenty wilderness areas, and two national monuments. These areas include Yosemite, Sequoia, and Kings Canyon National Parks; and Devils ...
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MPAA Film Rating System
The Motion Picture Association film rating system is used in the United States and its territories to rate a motion picture's suitability for certain audiences based on its content. The system and the ratings applied to individual motion pictures are the responsibility of the Motion Picture Association (MPA), previously known as the Motion Picture Association of America (MPAA) from 1945 to 2019. The MPA rating system is a voluntary scheme that is not enforced by law; films can be exhibited without a rating, although most theaters refuse to exhibit non-rated or NC-17 rated films. Non-members of the MPA may also submit films for rating. Other media, such as television programs, music and video games, are rated by other entities such as the TV Parental Guidelines, the RIAA and the ESRB, respectively. Introduced in 1968, following the Hays Code of the classical Hollywood cinema era, the MPA rating system is one of various motion picture rating systems that are used to help parents de ...
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